Bug 45065

Summary:	DHCP daemon is not always started after rebooting a UCS 4.2 system
Product:	UCS	Reporter:	Philipp Hahn <hahn>
Component:	DHCP	Assignee:	Philipp Hahn <hahn>
Status:	CLOSED FIXED	QA Contact:	Stefan Gohmann <gohmann>
Severity:	normal
Priority:	P5	Flags:	hahn: Patch_Available+
Version:	UCS 4.2
Target Milestone:	UCS 4.2-1-errata
Hardware:	Other
OS:	Linux
See Also:	https://forge.univention.org/bugzilla/show_bug.cgi?id=43688
What kind of report is it?:	Bug Report	What type of bug is this?:	5: Major Usability: Impairs usability in key scenarios
Who will be affected by this bug?:	2: Will only affect a few installed domains	How will those affected feel about the bug?:	5: Blocking further progress on the daily work
User Pain:	0.286	Enterprise Customer affected?:
School Customer affected?:	Yes	ISV affected?:
Waiting Support:		Flags outvoted (downgraded) after PO Review:
Ticket number:	2017070321000483	Bug group (optional):
Max CVSS v3 score:

Description Philipp Hahn

2017-07-25 10:49:18 CEST

univention-dhcp does not start when the DNS server is not yet available. In that case the /etc/init.d/univention-dhcp # test_config() fails to resolve the LDAP server and aborts switching RUNSV to running. This is logged in /var/log/univention/dhcp.log:
> ... POLICY ( ERROR ) : Failed to get namingContexts: Can't contact LDAP server

I'm able to re-product this by adding a "sleep 10" to "/etc/runit/univention-bind-samba4/run" before BIND9 is started. It does not trigger always.

+++ This bug was initially created as a clone of Bug #43688 +++

Comment 1 Philipp Hahn

2017-07-25 11:10:02 CEST

r81356 | Bug #45065 dhcp: Always start DHCP runsv service

Package: univention-dhcp
Version: 11.0.0-9A~4.2.0.201707251103
Branch: ucs_4.2-0
Scope: errata4.2-1

r81357 | Bug #45065 dhcp: Always start DHCP runsv service YAML
 univention-dhcp.yaml

Comment 2 Stefan Gohmann

2017-07-25 16:36:20 CEST

YAML: OK

Tests: OK

Code review: OK

Comment 3 Erik Damrose

2017-07-26 14:39:47 CEST

<http://errata.software-univention.de/ucs/4.2/101.html>